# import hashlib
# from django.conf import settings
# import uuid
#
# SECRET_KEY = 'django-insecure-!%x!#btlqfpei6&=!ac3omvv#ul#66=z+62&1ek^17%%2yt1zp'
#
# def md5(string):
#     """MD5加密"""
#     # 加盐（并且要求是字节类型）
#     hash_object = hashlib.md5(SECRET_KEY.encode('utf-8'))
#     hash_object.update(string.encode('utf-8'))
#     return hash_object.hexdigest()
#
# def uid(string):
#     data = "{}-{}".format(str(uuid.uuid4()),string)
#     return md5(string)
#
# print(uid('13534907270')) # 21b3dde0a35ba7f5fe5dd35c50b11528
# print()

print(float('12.4'))